This is a set of 3 items. There are two types of Goshuin (castle stamps): Ikeda family and Oshirobots. *The Ikeda family Goshuin comes with an explanatory note (see image 2). This is a collaboration Goshuin with "Castle Combination Oshirobots," which was sold at the MIXI_ANIME "Castle Combination Oshirobots" booth at the Castle EXPO 2023 held on December 16th and 17th, 2023. The characters for "National Treasure Himeji Castle" are taken from the wooden sign hanging on the mirror pillar of the Hishinomon gate, and the family crest is taken from the swallowtail butterfly pattern found on the quarter tile excavated from Bizenmaru, where the Ikeda family's palace was located. Himeji Castle, a national treasure, along with Horyu-ji Temple in Nara, became Japan's first World Cultural Heritage site in December 1993. Even now, over 400 years later, it retains its beautiful appearance.